/Engine/Source/Runtime/PreLoadScreen/Public/PreLoadSettingsContainer.h
Helper function to parse all .ini entries for LoadingGroups and ScreenOrder. Do these together so we can assert if we don't find a matching LoadingGroup identifier in the config. Should be run after we parse all screen groupings
virtual void ParseLoadingGroups ( [TArray](API\Runtime\Core\Containers\TArray)< [FString](API\Runtime\Core\Containers\FString) > & LoadingGroupIdentifiers )